解方程:2×1000X 2.5×1000(20-X)=450002×1000X+ 2.5×1000(20-X)=45000
问题描述:
解方程:2×1000X 2.5×1000(20-X)=45000
2×1000X+ 2.5×1000(20-X)=45000
答
解方程:2×1000X 2.5×1000(20-X)=45000
2×1000X+ 2.5×1000(20-X)=45000